… To allow fast strain estimation, we analytically derive the derivative of the dissimilarity metric
with respect to the strain using the chain rule, and therefore, can use an efficient gradient-…

… be rather pronounced and should be taken into account when interpreting the elastographic
strain maps obtained via phase-gradient analysis. Note that normalization of the OCT-image …

… of RF echo frames and the strain calculated from the axial gradient of the displacements. Under
… For liver fibrosis analysis, using an intercostal space as a window, the transducer can be …

… Elastography is based on the estimation of strain due to tissue compression or expansion.
Conventional elastography involves computing strain as the gradient of the displacement (time…

… The strain filter consists of a graphical and analytical representation of the allowable range
… The slope of the strain filter for low strain values is determined primarily by electronic noise …

… analysis (DMA) in a parallel-plate configuration under controlled temperature (22.5 C). Strain
sweep experiments are first performed to confirm the linear viscoelastic region (shear strain …

… an infinitesimal strain tensor; λ and µ are the Lamé’s material parameters (µ is the shear
modulus), which are the material parameters θ to be reconstructed in the elastography problem. …

… strain due to applied tissue compression. In conventional elastography, strain is computed
from the gradient … Gradient-based estimation methods are known to be susceptible to noise. In …

… and, fourth, the spatial variation of the induced internal tissue strains is estimated by performing
cross-correlation analysis on the pre- and postdeformed RF echo frames. The measured …

… bottom figure (B) is its reconstructed elastography counterpart. The thresholds for the volume
… (B) shows the shear modulus distribution from a 2D plane-strain reconstruction in the same …